Area = pi R2 = 100 pi = 314.16 square feet (rounded)
Area of a circle = pi*radius2 Area = 314.159 square feet to 3 decimal places.
The formula for the area (A) of a circle is A = πr2. If the area is 100π then 100π = πr2 : 100 = r2 : r = √100 = 10. The radius is of length 10 units.
Commit to memory the two circle equations C = 2 pi r A = pi r^(2) We required the second eq'n A = pi 10^(2) A = 3.14 X 100 A = 314.00 sq. ft.
circles dont have lengths or widths
1 acre = 43,560 square feet10 acres = 435,600 square feetArea of a circle = pi R2435,600 = pi R2R = sqrt(435,600 / pi) = 372.365 feet (rounded)
A circle with a radius of 10 feet has an area of 314.16 square feet.
The area of a circle with radius r feet is pi*r*r square feet.
Using 3.14 as Pi the area of circle is: 314.0
10 feet.
The formula for circumference is 2 x pi x radius. For a circle of 10 feet, the cirumference would be 62.8 feet. The formula for area is pi x r2. For a circle of 10 feet, the radius would be 314.16 ft.
Knowing that the area of a circle is its radius squared times Pi, the area of a 10 ft radius circle is 100*Pi square ft, or about 314 square feet.
The area of a circle is computed by the formula A = pi * r2 (r is the radius of the circle)For a 20 foot circle, the radius is 10 feet and the area is 314.16 square feet.
314 feet²Area of a circle = pi x radius²let pi = 3.14A = 3.14 x 10²A = 3.14 x 100A = 314 feet²
Area of a circle = pi*radius2 Area = 314.159 square feet to 3 decimal places.
Radius of circle: 10/2 = 5 feet
3.14 x 52 = 78.5 so the area is 78.5 ft2.
A circle with a radius of 10 metres has an area of 314.16 square metres.